Perforating machine



June 12. 1928. 1,672,874

' J. w. BARNA ,ET AL PERFORATING MACHINE Filed D ec. 1. 1926 Patented June 12, 1928. I

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M This inven tionerelates to improvements in.

eyeleting machines employed tor. setting eyelets in shoe-uppers and other articles with which eyelets are used. 1 l e The object, of the inventionis. to. provide means in a machine of this character. for.

positivelydisplacing or: discharging the punchingsfrom the die'spindles and guiding them to a suitable point of deposit.

In machines of this general type now well known the eyelets are fed from a suitable reservoir or receptacle by a raceway to the setting mechanism, which difl'ers somewhat in design and operation in the singlexset machine and in the duplex set ,machine.

These parts may be of'any well known construction to operatein the usual manner, and. as they form no part of the present invention except in so far as they are necessary to the operation of the machine they need not be particularly described. In either type of machine each set has associated therewith a positively operated spindle-die which coacts with a punch block to cut an aperture in the material in which the eyelet is to be attached, andalso means to pick up the movement of the spindle,

and hold an eyelet in position for the aflixing operation of the set. The spindle-dies, which cut the apertures in the material in which the eyelets .are to be aifixed, are tubular or hollow,v and the punchings are crowded upwardly therein by the pressure of succeeding punchings and escape from the upper endsof the spindles; in the single set machines a lateral opening is provided.

in the spindle above the die and the punchings are shaken out through thisopening by while in the duplex machines the ends of the spindles opposite the dies are open and the punchings are crowded out of the open ends of the spindles. In either case the punchings are discharged and scattered at random about themachine, and frequently lodge between the shoe uppers and their linings wherethey cause bumps and swellings when the shoe is lasted,and their removal requires considerable time andlabor as well as liability to damage the work.v

By our invention these objections are obviated and the punchings are confined and guided from the dies to the place of deposit.

Our invention consists of the organizations and arrangements of parts hereinafter fully described, particularlydesignated in with the free end of the the opening 16 into the claims and. illustrated in ,the; accom panying drawings in which the samerefcm ence numerals ndicate the same or similar;

- parts in the several views.

In the dirawin Eigure 1 is a view in front elevationo part of a single-set eye leting; machine provided. with. the features ofzour invent on; Figs. 21and3 are sectional views taken on the lines 2-2 and 33, re-

spectively, in Fig. 1; and Fig. 4 is a detail perspective View of the guide shown in the from the punch-blockby a suitable mechanism which is well known and so is not shown. The die-spindle .14 is hollow to receive the punchings cut from the material bythe die in its successive strokes, and the spindle is provided with a lateral discharge opening 16 above the die. Acylindrical setcollar 17 is fixed around the spindle at the opening 16; in the exemplification shown the collar is split atone side and one of its wings 18 is threaded to receive screw-bolt 19 by which it is clamped in place on the spindle. The collar is provided with. a tubular lateral conduit 20 whose bore registers with the discharge opening16 of the spindle, and a flexible pipe 21 is connected conduit 20 to convey the punchings away fromthe spindle to any place where it is A guide is the punchings desired to ,depositthem.

conduit 20. This they accumulate in thespindle to pass out through the discharge opening, and in the form here shown it consists of a thin metallic plate 22 secured at its outer end by a screw 23 to the collar 17 and extending through and across the bore of is bent downwardly at aninclined or cam surthe spindle where it an angle to present located in the spindle to deflect g h out of the latter through the opening 16 and into the guide may be of any suitable form'and con? i I struction that will cause the punchings as face to the leading punchings as they are crowded up into thespindle by the following successive punchings.

The guides extend transversely 'of the bores of the spindles and their inclined operative faces displace or deflect the leading punchings out of the discharge orifices of thespindles and through the conduits as they are pushed or crowded against the guides by the following punchings, so that therc'is no choking or stoppage of the punchings in the spindles and this waste matter is passed and conveyed away from the machines and from the material in which the eyelets are fixed by the machines. We claim: 1. In an eyeleting machine, adie adapted to cut apertures and having a hollow spindle provided with a lateral discharge orifice, a collar on the spindle having a conduit in extension of the orifice, and a deflecting guide on the collar and extending into the orifice guide consisting of a metallic plate secured at its outer end to the collar and extending through the discharge orifice of the spindle and downwardly across its bore.

In testimony whereof we afiix our sig- JOSEPH W. BARNA. NATHAN A. THOMAS.

natures. 

